126691 divided by 86 
Let's see how many times 86 fits into 126691.

Going ahead to step 1:
86 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 86

Let's proceed to step 2:
The number 86 fits into 12 0 times, leaving a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 86

Advancing to step 3:
86 goes into 126 1 times with a remainder of 40.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 86 from 126 leaves us with 40.
Bring next digit (6) of the dividend behind the 40 and repeat the process: 406 / 86

Going ahead to step 4:
86 goes into 406 4 times with a remainder of 62.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
If we subtract 344 from 406, we get 62.
Bring next digit (9) of the dividend behind the 62 and repeat the process: 629 / 86

Let's proceed to step 5:
If we divide 629 by 86, we get 7 and a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 147.0
If we subtract 602 from 629, we get 27.
Take the next digit (1) from the dividend and append it to 27, then repeat: 271 / 86

Step 6:
When dividing 271 by 86, we get 3 with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 1473.0
If we subtract 258 from 271, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
The number 86 fits into 130 1 times, leaving a remainder of 44.
Use 1 as the next digit of our solution. 
Result so far: 1473.1
Subtract 86 from 130 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 8:
440 divided by 86 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 1473.15
Subtracting 430 from 440 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
86 can be fit into 100 1 times, resulting in a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1473.151
Deduct 86 from 100 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 10:
86 can be fit into 140 1 times, resulting in a remainder of 54.
Put 1 as the next digit of the answer. 
Result so far: 1473.1511
If we take 86 away from 140, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The quotient of the division is 1473.1511, and the remainder is 0.00054.